-----------------------------------
-- Ability: Shield Bash
-----------------------------------

require("scripts/globals/settings");
require("scripts/globals/status");

function OnAbilityCheck(player,target,ability)
	if (player:getShieldSize() == 0) then
		return MSGBASIC_REQUIRES_SHIELD,0;
	else
		return 0,0;
	end
end;

-----------------------------------
-- OnUseAbility
-----------------------------------

function OnUseAbility(player, target, ability)

	local shieldSize = player:getShieldSize();
	local damage = 0;

	local chance = 90;
	damage = player:getMod(MOD_SHIELD_BASH);

	if(shieldSize == 1 or shieldSize == 5) then
		damage = 25 + damage;
	elseif(shieldSize == 2) then
		damage = 38 + damage;
	elseif(shieldSize == 3) then
		damage = 65 + damage;
	elseif(shieldSize == 4) then
		damage = 90 + damage;
	end

	if(player:getMainJob() ~= JOB_PLD) then
		damage = math.floor(damage / 2.5);
		chance = 60;
	else
		damage = math.floor(damage);
	end

	chance = chance + (player:getMainLvl() - target:getMainLvl())*5;

	if(math.random()*100 < chance) then
		target:addStatusEffect(EFFECT_STUN,1,0,6);
	end

	-- randomize damage
	local ratio = player:getStat(MOD_ATT)/target:getStat(MOD_DEF);
	if (ratio > 1.3) then
		ratio = 1.3;
	end
	if (ratio < 0.2) then
		ratio = 0.2;
	end

	local pdif = (math.random(ratio*0.8*1000, ratio*1.2*1000));

	--printf("damge %d, ratio: %f, pdif: %d\n", damage, ratio, pdif);

	damage = damage * (pdif / 1000);

	target:delHP(damage);
	target:updateEnmityFromDamage(player,damage);

	ability:setMsg(110);

	return damage;
end;
